"Before Australia's Got Talent, I hardly got to see Dad at all, because we didn't have much money and we couldn't afford it," Jack said. "Now I will be able to see him a lot more, so it's great."

Steven has been battling MS for about eight years but is positive about his future, saying: "We're not here for a long time, we're here for a good time." Jack added: "I don't want him to die. I hope he lives to 100."

Jack's father also revealed that he is "so proud" of his son for his success.